Value | Category |
---|---|
1 | 1. January |
2 | 2. February |
3 | 3. March |
4 | 4. April |
5 | 5. May |
6 | 6. June |
7 | 7. July |
8 | 8. August |
9 | 9. September |
10 | 10. October |
11 | 11. November |
12 | 12. December |
33 | 33. Missing |
55 | 55. Not applicable |
88 | 88. Refused |
99 | 99. Don't know |
Sysmiss |